One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,10)(4,5)(6,7)(8,11)(9,14)(12,13)(15,16)(18,23)(19,25)(26,30)(27,32) involution — undirected(2,7)(3,11)(4,14)(13,16)(17,18,22,23)(19,24,25,20)(21,26,29,30)(27,31,32,28)(33,34)(35,40)(36,37)(38,39)(41,46)(42,48)(43,45)(44,47)(2,7)(5,9)(8,10)(13,16)(21,29)(26,30)(27,32)(28,31)(34,39)(37,41)(40,47)(43,48) involution — undirected(1,3,6,11)(2,8,7,10)(4,15,14,12)(5,13,9,16)(17,19)(18,24)(20,23)(21,27)(22,25)(26,31)(28,30)(29,32)(33,35)(34,40)(36,45)(37,43)(38,44)(39,47)(41,48)(42,46)(1,4)(2,9)(3,12)(5,7)(6,14)(8,13)(10,16)(11,15)(17,20,22,24)(18,25,23,19)(21,28,29,31)(26,32,30,27)(33,36)(34,41)(35,42)(37,39)(38,46)(40,43)(44,45)(47,48)(1,5,6,9)(2,4,7,14)(3,13,11,16)(8,15,10,12)(17,21,22,29)(18,26,23,30)(19,27,25,32)(20,28,24,31)(33,37,38,41)(34,36,39,46)(35,43,44,48)(40,45,47,42)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.